191 1.] Starch Equivalents of Feeding Stuffs. 735 



A ration with less protein and starch equivalent is : — 



Digestible Starch 



protein. equivalent, 



lb. lb. 



33 lb. swedes ... ... ... ... 0*099 2*50 



10 meadow hay ... ... ... 0'38 3*10 



20 oat straw... ... ... ... 0*20 3*80 



5 crushed oats 0*05 3*10 



2 decort. cotton cake 079 1*44 



1-52 13-94 



The starch equivalent can be used very satisfactorily for 

 the making up of rations for fattening animals of all kinds. 

 Reference to the table of feeding standards will show what 

 is required in the several cases. It will be noticed that the 

 standards for full-grown animals are less the further the 

 period of fattening advances. This arrangement is more 

 economical than continuing to give the amount with which 

 a start was made right up to the end of fattening. The 

 animal cannot utilise the full supply when it is nearing the 

 point at which it can be considered to be finished. 



With working horses an exactly similar course can be fol- 

 lowed, and if the amount of digestible protein and the starch 

 equivalent are calculated it will be seen how nearly any ration 

 which is being fed conforms to the standard. A horse receiv- 

 ing 20 lb. of hay and 12 lb. of oats daily would be getting 

 1 '4 lb. of digestible protein and 137 lb. starch equivalent. 

 These amounts would suffice for an animal which was not 

 doing particularly heavy work, but if more were expected, then 

 extra food would have to be given. Beans would be a suitable 

 addition, for they are rich in digestible protein, and they have 

 a fairly high starch equivalent. 



